Additively manufactured energy absorbing strut device
US12429105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Oct 31, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2236/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An additively manufactured strut device including a cylinder body forming a chamber and a piston having a first part disposed in the internal chamber and a second part disposed outside of the chamber. A first deformable element formed as a lattice structure breaks to permit initial withdrawal of the piston when a tensive threshold is met and a second deformable crushes during continued withdrawal of the piston. In further embodiments, a third deformable element formed as a lattice structure may be collocated with the second deformable element. The strut may be manufactured by an additive manufacturing process. Applications for the energy absorbing strut include aircraft seat frames among other applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.